2003 Kia Rio cant fix P0101

Hi I have a 2003 kia rio 1.6 dohc with 130,000 miles on it all maintenance is up to date I got a code p0101 I put on 3 mass air flow sensors 2 from a local auto parts store the 1 the last one from the dealer cleared the code it comes back I changed the tps and cleared the code it still comes backs. It has a new air filter and I cant find any vacuum leaks. Right before the code sets the will be a slight hesitation on take off not every time but a few times during a ride. Then the light will be set if I clear the code the hesitation will go away but when it comes back then the code p0101 sets.
Please help me I have tried everything.
David